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fix(frontends/lean/parser): bug in tuple/proj1/proj2

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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
This commit is contained in:
Leonardo de Moura 2014-02-03 22:46:29 -08:00
parent 4fcc292332
commit 61d0c792ff
1 changed files with 4 additions and 4 deletions
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8
src/frontends/lean/parser_expr.cpp
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@ -857,19 +857,19 @@ expr parser_imp::parse_tuple() {
auto p = pos();
next();
buffer<expr> args;
expr first = parse_expr();
expr first = parse_expr(g_app_precedence);
expr type;
if (curr_is_colon()) {
next();
type = first;
args.push_back(parse_expr());
args.push_back(parse_expr(g_app_precedence));
} else {
args.push_back(first);
type = save(mk_placeholder(), p);
}
while (curr_is_comma()) {
next();
args.push_back(parse_expr());
args.push_back(parse_expr(g_app_precedence));
}
unsigned num = args.size();
if (num < 2)
@ -903,7 +903,7 @@ expr parser_imp::parse_proj(bool first) {
throw parser_error(sstream() << "invalid tuple/pair projection, optional index is >= "
<< LEAN_MAX_PROJECTION << " (internal limit)", p);
}
expr t = parse_expr();
expr t = parse_expr(g_app_precedence);
while (i > 0) {
--i;
t = save(mk_proj2(t), p);